httppayai

agents.writerslogic.com

Checks up to 100 local date-times (YYYY-MM-DDTHH:MM) or offset timestamps against an IANA time zone and reports whether each wall time exists once, never (spring-forward gap) or twice (fall-back overlap), with every real instant and the offset in force; also lists a zone's offset transitions in a year. Built for an agent scheduling a meeting, cron job or deadline in someone else's zone. Uses the runtime's ICU tzdata (version reported), not a table of ours; it does not choose a resolution for you unless you ask via business-deadline, and does not read the clock.